BMC/Intel-BMC/linux.git/fs/ceph/addr.c, branch dev-4.10

ceph: update readpages osd request according to size of pages

2017-03-12T05:44:21+00:00

commit d641df819db8b80198fd85d9de91137e8a823b07 upstream. add_to_page_cache_lru() can fails, so the actual pages to read can be smaller than the initial size of osd request. We need to update osd request size in that case. Signed-off-by: Yan, Zheng Reviewed-by: Jeff Layton Signed-off-by: Greg Kroah-Hartman

ceph: fix get_oldest_context()

2017-01-12T18:31:01+00:00

For no snapshot case, we should use ci->truncate_{seq,size}. Fixes: 5f743e456606 ("ceph: record truncate size/seq for snap data writeback") Signed-off-by: Geng, Jichao Signed-off-by: Yan, Zheng

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-12-18T02:44:00+00:00

Pull more vfs updates from Al Viro: "In this pile: - autofs-namespace series - dedupe stuff - more struct path constification" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits) ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features ocfs2: charge quota for reflinked blocks ocfs2: fix bad pointer cast ocfs2: always unlock when completing dio writes ocfs2: don't eat io errors during _dio_end_io_write ocfs2: budget for extent tree splits when adding refcount flag ocfs2: prohibit refcounted swapfiles ocfs2: add newlines to some error messages ocfs2: convert inode refcount test to a helper simple_write_end(): don't zero in short copy into uptodate exofs: don't mess with simple_write_{begin,end} 9p: saner ->write_end() on failing copy into non-uptodate page fix gfs2_stuffed_write_end() on short copies fix ceph_write_end() nfs_write_end(): fix handling of short copies vfs: refactor clone/dedupe_file_range common functions fs: try to clone files first in vfs_copy_file_range vfs: misc struct path constification namespace.c: constify struct path passed to a bunch of primitives quota: constify struct path in quota_on ...

ceph: avoid creating orphan object when checking pool permission

2016-12-14T21:39:04+00:00

Pool permission check needs to write to the first object. But for snapshot, head of the first object may have already been deleted. Skip the check for snapshot inode to avoid creating orphan object. Link: http://tracker.ceph.com/issues/18211 Signed-off-by: Yan, Zheng

ceph: record truncate size/seq for snap data writeback

2016-12-12T22:54:27+00:00

Dirty snapshot data needs to be flushed unconditionally. If they were created before truncation, writeback should use old truncate size/seq. Signed-off-by: Yan, Zheng

ceph: try getting buffer capability for readahead/fadvise

2016-12-12T22:54:27+00:00

For readahead/fadvise cases, caller of ceph_readpages does not hold buffer capability. Pages can be added to page cache while there is no buffer capability. This can cause data integrity issue. Signed-off-by: Yan, Zheng

fix ceph_write_end()

2016-12-10T19:24:45+00:00

don't zero on short copies; if the page was uptodate it's just plain wrong, and if it wasn't we'll be better off just returning 0 and buggering off. Signed-off-by: Al Viro

ceph: remove warning when ceph_releasepage() is called on dirty page

2016-10-03T14:13:49+00:00

If O_DIRECT writes are racing with buffered writes, then the call to invalidate_inode_pages2_range() can call ceph_releasepage() on dirty pages. Most filesystems hold inode_lock() across O_DIRECT writes so they do not suffer this race, but cephfs deliberately drops the lock, and opens a window for the race. This race can be triggered with the generic/036 test from the xfstests test suite. It doesn't happen every time, but it does happen often. As the possibilty is expected, remove the warning, and instead include the PageDirty() status in the debug message. Signed-off-by: NeilBrown Reviewed-by: Jeff Layton Reviewed-by: Yan, Zheng

ceph: fix error handling of start_read()

2016-10-03T14:13:49+00:00

If start_page() fails to add a page to page cache or fails to send OSD request. It should cal put_page() (instead of free_page()) for relevant pages. Besides, start_page() need to cancel fscache readpage if it fails to send OSD request. Signed-off-by: Yan, Zheng Reported-by: Zhi Zhang

ceph: rados pool namespace support

2016-07-28T00:55:38+00:00

This patch adds codes that decode pool namespace information in cap message and request reply. Pool namespace is saved in i_layout, it will be passed to libceph when doing read/write. Signed-off-by: Yan, Zheng